July 2015
Intermediate to advanced
482 pages
13h 28m
English
Content preview from SAS 9.4 SQL Procedure User's Guide, Second Edition, 2nd Edition
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Appendix 2
PROC SQL and the ANSI
Standard
Compliance
PROC SQL follows most of the guidelines set by the American National Standards
Institute (ANSI) in its implementation of SQL. However, it is not fully compliant with
the current ANSI standard for SQL.
2
The SQL research project at SAS has focused primarily on the expressive power of SQL
as a query language. Consequently, some of the database features of SQL have not yet
been implemented in PROC SQL.
SQL Procedure Enhancements
Reserved Words
PROC SQL reserves very few keywords. And then, only in certain contexts. The ANSI
standard reserves all SQL keywords in all contexts. For example, according to the
standard, you cannot name a column GROUP because of the keywords GROUP BY.
The following words are ...
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